Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.

Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 22, 2026, 8:21 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–48 of 99 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Functional Constipation Clear all
Withdrawn No phase listed Observational

A Non-Interventional Pilot Study to Explore the Role of Gut Flora in IBS

NCT04214470
View directory record Official record
Conditions
Irritable Bowel, Irritable Bowel Syndrome, Irritable Bowel Syndrome With Diarrhea, Irritable Bowel Syndrome Mixed, Irritable Bowel Syndrome With Constipation, Irritable Bowel Syndrome Without Diarrhea, Irritable Bowel Syndrome Aggravated, Irritable Bowel Syndrome Characterized by Constipation, Irritable Bowel Syndrome Characterised by Alternating Bowel Habit
Interventions
No intervention
Other
Lead sponsor
ProgenaBiome
Other
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2030
U.S. locations
1
States / cities
Ventura, California
Source: ClinicalTrials.gov public record
Updated Jun 5, 2025 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Curcumin (Tumeric) in the Treatment of Irritable Bowel Syndrome: A Randomized-Controlled Trial

NCT00779493
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
curcumin, placebo
Dietary Supplement
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 11, 2015 · Synced Oct 22, 2026, 8:21 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Impact of Weizmannia (Bacillus) Coagulans JBI-YZ6.3 on Gut Health and Fecal Microbiome Changes

NCT07388264
View directory record Official record
Conditions
Gastrointestinal Symptoms, Constipation, Gut Health, Gastrointestinal Function
Interventions
Weizmannia (Bacillus) coagulans JBI-YZ6.3, Placebo
Dietary Supplement
Lead sponsor
Lindenwood University
Other
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 5, 2026 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Alpha-1 Antagonist, Stress and Relaxation on Anorectal Functions

NCT01834729
View directory record Official record
Conditions
Constipation
Interventions
Alfuzosin, Placebo
Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
74 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 29, 2019 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Phase 2 Interventional

A Phase 2 Study to Evaluate Pharmacodynamics of YKP10811 in Patients With Chronic or Functional Constipation

NCT01523184
View directory record Official record
Conditions
Chronic Constipation, Functional Constipation
Interventions
Placebo Capsule, YKP10811 Drug Product Capsule
Drug
Lead sponsor
SK Life Science, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 4, 2014 · Synced Oct 22, 2026, 8:21 PM EDT
Completed No phase listed Observational

Efficacy of Psychological Therapies in Patients With Functional Bowel Disorders

NCT04060121
View directory record Official record
Conditions
IBS - Irritable Bowel Syndrome, Constipation
Interventions
Not listed
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Apr 29, 2024 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Not applicable Interventional Results available

Utility of an Animated Bowel Biofeedback Training Routine to Improve Bowel Function in Individuals With SCI

NCT02406859
View directory record Official record
Conditions
Spinal Cord Injury, Constipation, Fecal Incontinence, Neurogenic Bowel
Interventions
Bowel Biofeedback, Anorectal Manometry
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Sep 17, 2021 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Not applicable Interventional Results available

Effects of Lubiprostone on Gastrointestinal Transit & pH in Irritable Bowel Syndrome (IBS) With Constipation

NCT01162863
View directory record Official record
Conditions
Irritable Bowel Syndrome, Constipation
Interventions
Lubiprostone, Placebo, Smartpill wireless motility capsule
Drug · Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 27, 2017 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Study of NGM282 in Subjects With Functional Constipation and Healthy Individuals

NCT02649062
View directory record Official record
Conditions
Functional Constipation
Interventions
NGM282, Placebo
Biological · Other
Lead sponsor
NGM Biopharmaceuticals, Inc
Industry
Eligibility
18 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 30, 2018 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Clinical Implementation of a Pictographic Constipation Action Plan for Children With Functional Constipation

NCT05437523
View directory record Official record
Conditions
Functional Constipation
Interventions
Constipation Action Plan, Standard of care without constipation action plan
Other
Lead sponsor
Walter Reed National Military Medical Center
Federal
Eligibility
4 Years to 25 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 29, 2022 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Phase 2 Interventional Results available

Study of LX1031 in Subjects With Non-Constipating Irritable Bowel Syndrome

NCT00813098
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
LX1031 High Dose, LX1031 Low Dose, Placebo
Drug
Lead sponsor
Lexicon Pharmaceuticals
Industry
Eligibility
18 Years to 70 Years
Enrollment
155 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
36
States / cities
Tucson, Arizona • Sherwood, Arkansas • Anaheim, California + 29 more
Source: ClinicalTrials.gov public record
Updated Dec 2, 2010 · Synced Oct 22, 2026, 8:21 PM EDT
Suspended No phase listed Observational Accepts healthy volunteers

A Non-Interventional Pilot Study to Explore the Role of Gut Flora in Disease

NCT04031469
View directory record Official record
Conditions
Gut Microbiome, Gastrointestinal Microbiome, Autism, Autism Spectrum Disorder, Autism Spectrum Disorder High-Functioning, Alzheimer Disease, Alzheimer Dementia (AD), Alzheimer Dementia, Alzheimer Disease (AD), Crohn, Crohn Colitis, Crohn Disease (CD), Crohn Disease Colon, Myalgic Encephalomyelitis, ME/CFS, Myalgic Encephalomyelitis (ME), Myalgic Encephalomyelitis/Chronic Fatigue Syndrome, Psoriasis, Psoriasis Annularis, Psoriasis Chronic, Chronic Urinary Tract Infection, Ulcerative Colitis (Disorder), Ulcerative Colitis (UC), Ulcerative Colitis Acute, Ulcerative Colitis Chronic, Multiple Sclerosis, Multiple Sclerosis (MS) - Relapsing-remitting, Multiple Sclerosis (MS) Primary Progressive, Constipation Chronic Idiopathic, Constipation, Celiac, Celiac Disease, Celiac Sprue, Lyme Arthritis, Lyme Borreliosis, Nervous System, Lyme Disease, Chronic, Cholesterol, Cholesterol Level, High, Cancer, Colon Cancer, Amyotrophic Lateral Sclerosis (ALS), Amyotrophic Lateral Sclerosis, Rheumatoid Arthritis (RA), Rheumatoid Arthritis - Rheumatism, Chronic Fatigue Syndrome (CFS), PARKINSON DISEASE (Disorder), Parkinson Disease, Parkinson Disease (PD), Depression, Major Depressive Disorder (MDD), Depression Disorder, Depression in Adults, Anxiety, Anxiety Disorder Generalized, Obsessive Compulsive Disorder (OCD), Obsessive Compulsive Disorder OCD, Obsessive - Compulsive Disorder, Bipolar, Bipolar 1 Disorder, Bipolar Disorder (BD), Bipolar Disorder I and II, Bipolar and Related Disorders, Migraine, Migraine Disorder, Diabetes (DM), Diabetes, Lupus, Lupus Erythematosus, Epidermolysis Bullosa (EB), Mesothelioma, Mesothelioma Malignant, IBS (Irritable Bowel Syndrome), Irritable Bowel, IBS - Irritable Bowel Syndrome, Irritable Bowel Syndrome (IBS), Eczema, Eczema Atopic Dermatitis, Acne, Myasthaenia Gravis, Gout
Interventions
There is no intervention in this study
Other
Lead sponsor
ProgenaBiome
Other
Eligibility
12 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2030
U.S. locations
1
States / cities
Ventura, California
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety, Tolerability and Pharmacokinetics of CDD-2101 in Health Volunteers

NCT06570668
View directory record Official record
Conditions
Constipation - Functional
Interventions
CDD-2101
Drug
Lead sponsor
Centre for Chinese Herbal Medicine Drug Development Limited
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Newark, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 26, 2024 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Phase 3 Interventional Results available

Long Term Safety Study of Plecanatide

NCT02706483
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Plecanatide
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 85 Years
Enrollment
2,272 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
204
States / cities
Athens, Alabama • Birmingham, Alabama • Dothan, Alabama + 200 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2020 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Cheno Effect on Transit in Health and IBS-C

NCT00912301
View directory record Official record
Conditions
Constipation-predominant Irritable Bowel Syndrome
Interventions
Sodium chenodeoxycholate (NaCDC), Placebo
Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 2, 2012 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Phase 2 Interventional Results available

A Safety and Efficacy Study of a Range of Linaclotide Doses Administered Orally to Children Ages 6-17 Years Who Fulfill Modified Rome III Criteria for Child/Adolescent Functional Constipation (FC)

NCT02559570
View directory record Official record
Conditions
Functional Constipation in Children Ages 6-17 Years
Interventions
Placebo, LIN Dose A, LIN Dose B, LIN Dose C, LIN 145 µg
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
6 Years to 17 Years
Enrollment
173 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
60
States / cities
Hot Springs, Arkansas • Little Rock, Arkansas • Anaheim, California + 51 more
Source: ClinicalTrials.gov public record
Updated Jun 19, 2019 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Not applicable Interventional Results available

A Colonic Tube to Improve Bowel Function in Spinal Cord Injury

NCT00345397
View directory record Official record
Conditions
Constipation, Fecal Incontinence, Spinal Cord Injury
Interventions
Percutaneous endoscopic colostomy (PEC) tube
Device
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2018
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 1, 2019 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Impact of Respiratory Muscle Training and Patient Education on Chronic Constipation Outcomes

NCT05823259
View directory record Official record
Conditions
Constipation, Constipation - Functional, Dyssynergia
Interventions
Hybrid Telehealth Program: Respiratory Muscle Training and Patient Education, Standard Physical Therapy Care
Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Coral Gables, Florida
Source: ClinicalTrials.gov public record
Updated Dec 13, 2024 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Phase 2 Interventional Results available

Effect of Ileal Bile Acid Transporter Inhibitor in Functional Constipation

NCT01038687
View directory record Official record
Conditions
Functional Constipation
Interventions
A3309, placebo
Drug
Lead sponsor
Michael Camilleri, MD
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 4, 2020 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Transdermal Administration by a Novel Wireless Iontophoresis Device

NCT06351852
View directory record Official record
Conditions
Spinal Cord Injuries, Constipation, Fecal Incontinence, Neurogenic Bowel
Interventions
Combination of Neostigmine and Glycopyrrolate, I-Box by Dynatronics
Drug · Device
Lead sponsor
James J. Peters Veterans Affairs Medical Center
Federal
Eligibility
18 Years to 89 Years
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Sep 17, 2025 · Synced Oct 22, 2026, 8:21 PM EDT
Not listed Phase 2Phase 3 Interventional

A Study of the Safety and Effectiveness of DDP733 in Treating IBS With Constipation in Females

NCT00547469
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
DDP733
Drug
Lead sponsor
Dynogen Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2007
U.S. locations
62
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 53 more
Source: ClinicalTrials.gov public record
Updated Apr 8, 2008 · Synced Oct 22, 2026, 8:21 PM EDT
Terminated Phase 2 Interventional Results available

A Safety and Efficacy Study of a Range of Linaclotide Doses Administered Orally to Children Ages 7-17 Years, With Irritable Bowel Syndrome With Constipation

NCT02559817
View directory record Official record
Conditions
Irritable Bowel Syndrome With Constipation
Interventions
Linaclotide Dose A, Linaclotide Dose B, Linaclotide Dose C, Linaclotide Approved Adult Dose, Matching Placebo
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
7 Years to 17 Years
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
46
States / cities
Hot Springs, Arkansas • Little Rock, Arkansas • Anaheim, California + 39 more
Source: ClinicalTrials.gov public record
Updated Dec 28, 2020 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Phase 3 Interventional Results available

Long-term Safety of Linaclotide in Pediatric Participants With FC or IBS-C

NCT04166058
View directory record Official record
Conditions
Irritable Bowel Syndrome With Constipation, Functional Constipation
Interventions
Irritable Bowel Syndrome with Constipation (IBS-C) participants (LIN-MD-63 and LIN-MD-64 completers), Functional Constipation (FC) participants (LIN-MD-62 and LIN-MD-64 completers)
Drug
Lead sponsor
AbbVie
Industry
Eligibility
6 Years to 18 Years
Enrollment
381 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
65
States / cities
Birmingham, Alabama • Foley, Alabama • Saraland, Alabama + 50 more
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced Oct 22, 2026, 8:21 PM EDT
Completed Phase 2 Interventional

Phase 2 Study of MD-1100 Acetate on Gastrointestinal Transit in Patients With C-IBS

NCT00258193
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
MD-1100 Acetate
Drug
Lead sponsor
Ironwood Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 20, 2006 · Synced Oct 22, 2026, 8:21 PM EDT